“If you remove all the low frequencies, you hear Yanny. If you remove the high frequencies, you hear Laurel,” according to Lars Riecke, an expert in audition and cognitive neuroscience at Maastricht University.

Adults tend to start losing their hearing at higher frequency as they age, so it could be a sign of hearing loss, Riecke says.

Other experts say that the low sound quality of the clip could be affecting how your brain is processing the sound.